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<br />. <br /> <br />. <br /> <br />. <br /> <br />I" no,. n "'l '.~.) <br />tH) L. .J \) ] <br /> <br />Table 1. Instream flow techniques and research needs in the western United States (Reiser et. al <br />1989) <br /> <br />State Ouantification Technique Research Needs <br />Alaska . IFIM . Test methods and modify for Alaska conditions. <br /> . Tennant . Develop local preference curves. <br /> . Other proven methods . More ~a~in~ stations. <br />Colorado . R2CROSS . Validate relationship between Weighted Usable Area <br /> . IFIM in selected cases and fish population response. <br />Hawaii . IFIM . Define microhabitat requirements. <br /> . Q90 <br />Idaho . IFIM . More stream- and species-specific probability-of-use <br /> . Wetted Perimeter information. <br />Kansas . IFlM . Validate response of standing crops to varying flow <br /> re~imes. <br />Montana . Wetted Perimeter . Summarize biological response to flow. <br /> . Flows for wetlands and riparian habitats. <br /> . Impacts of fluctuating flows. <br /> . Flushing flow requirements. <br /> . Impacts of winter flow reductions. <br />Nebraska . None specified . Determine channel maintenance flows in alluvial <br /> streams. <br />Oregon . IFIM . Validate IFIM habitatflow relationship. <br /> . Oregon method . Develop low cost methods for water resources planning <br /> and small proiects. <br />Utah . IFIM . Effects of peaking flows on fisheries. <br /> . Tennant . Develop preference curves for non-game species. <br /> . Validate IFIM habitat:flow relationship. <br /> . Develop flushin~ flow methods. <br />Washington . IFIM . Methods for high gradient streams. <br /> . USGS Toe-Width . Improve salmonid preference curves. <br /> . Tennant . Verify habitat preference curves. <br /> . Big river flow models. <br /> . Test fish production v. habitat:flow relationship. <br />Wyoming . IFlM . Validate IFlM. <br /> . Habitat Quality Index (HQI) . Winter flow requirements. <br /> . Tennant . Flushing flows. <br /> . VerifY flow recommendations. <br /> <br />5 <br />